【摘要】 核电厂在反应堆启、停堆过程中必须将压力和温度控制在一定范围内，即压力-温度限值曲线(P-T曲线)所允许的范围内，以防止反应堆压力容器发生脆性开裂。本文论述了反应堆压力容器P-T曲线制定的防脆断设计的基础理论，总结了EJ/T 918-94规范和RCC-M 2007规范中关于P-T曲线的计算方法和分析流程，采用ANSYS APDL编程实现了P-T曲线的自动分析，并对RCC-M 2007规范中的P-T计算分析方法进行了完善，对计算结果进行了对比分析，研究表明EJ/T 918的计算结果过于保守。更多还原

【Abstract】 In order to prevent the brittle fracture during nuclear power plant startup and shutdown process, the pressure and temperature in the reactor pressure vessel should be kept under the pressure-temperature(P-T) limit curve. This paper discusses the basic theory of anti-brittle fracture design for the formulation of the P-T limit curve of the reactor pressure vessel, summarizes the calculation method and analysis process of the P-T limit curve in EJ/T 918-94 code and RCC-M 2007 code, realizes the calculation and analysis of the P-T limit curve by using ANSYS APDL programming, improves the method in the RCC-M code, and finally carries out comparison and analysis for the P-T limit curve based on different code. The study shows that the calculation results based on EJ/T918 are too conservative.更多还原